Automatic check-row corn-planter.



No. 655,656. Patented Aug. 7, I900.

.J. B. JARMIN.

AUTOMATIC CHECK ROW CORN PLANTER.

- (Application filed Apr. 21, 1900.) Modem 4 Sheets-Sheet I.

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Patented Aug. 7, I900. J. B. JABMIN. AUTOMATIC CHECK ROW CORN PLANTEH. {Application filed Apr. 21, 1900.) (No Model.)

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No. 655,656. Patented Aug. 7, I900. J. B. JARMI N. AUTOMATIC CHECK ROW CORN PLANTE-R.

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J. B. JABMIN. AUTOMATIC CHECK BOW BORN PLANTER.

(Application filed Apr. 21, 1900.)

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JAMES B. JARMIN, OF DAVENPORT, IOWA, ASSIGNOR TO THE IMPLEMENT MANUFACTURING COMPANY, OF SAME PLACE.

AUTOMATIC CHECK-ROW CORN-PLANTER.

SPECIFICATION forming part of Letters Patent No. 655,656, dated August 7, 1900.

Application filed April 21, 1900.

To all whom it may concern:

Be it known that 1, JAMES B. JARMIN, a citizen of the United States, residing at Davenport, in the county of Scott and State of Iowa,

have invented certain new and useful Improvements in Automatic Oheck-Row Corn- Planters, of which the following is a specification.

This invention relates to improvements in that class of automatic corn-planters of which thatillustrated in Letters Patent No. 630,890, granted me on the th day of August, 1899, is a type, the essential feature of this class of machines being such a connection between the marker and planter'frames as that the planter may be deflected laterally by the swerving of the team orcrooked driving without turning the marker out of the true line of planting.

The primary object of this invention is a novel and effective construction whereby this essential feature is attained without unnecessary prolongation of the planter and its connections and whereby is avoided undue sensitiveness of the marker resulting from short couplings with the universal joint, even Where applied at the center of the planter, as in my Letters Patent No. 630,890, granted me the 15th day of August, 1809.

In my present machine the usual elements of a planter of this class are present and cooperating in the same manner as in other machines of this class, and for that reason it is not deemed necessary to describe in detail all of the parts of the machine. The essential element of difference, and the only feature of novelty desired to be claimed in this application, is the connection between the marker attachment and the planter, in which my invention consists and to which the invention will be limited.

In the drawings, Figure 1 represents a plan View of a planter having a marker attachment applied thereto embodying my invention, the planter and marker being shown in normal position when planting a straight line. Fig. 2 is a View similar to Fig. 1, but showing the planter turned to one side of the planting. Fig. 3 is a vertical section on the line 3 3 of Fig. 1. Figs. 4110 9, inclusive, are detail views which will be referred to farther on.

erial No. 13,714. (No model.)

Similar letters of reference indicate the same parts in the several figures of thedrawlugs.

Referring by letter to the accompanying drawings, A indicates the back or wheel frame, 13 the forward or runner frame pivotally connected thereto, and O the tongue, connected at its rear end by a rod D with a crankarm E, proceeding from a sleeve F, (see Fig. 5,) mounted upon the axle, and having secured to its opposite end a latch-lever G, by means of which the forward frame may be raised and lowered in the usual manner. The rod D is pivoted to the end of the crankarm E, but passes freely through a perforation having inclined walls in the end of the tongue, being provided with a head below the tongue, while between the end of the tongue and the end of the crank-arm E is confined a coil-spring D, sleeved upon the rod D, the tension of which tends to normally hold the ends of the tongue and crank-arm separated.

The markershaft H carries upon its ends spade marker-wheels I of usual construction and is loosely journaled and held against endwise movement by the usual devices, such as set-screws or collars, (not shown,) in a crossbar J, rigidly secured to the rear ends of a pair of coupling-bars K, which bars are pivotally connected by a horizontal pivot with a T-shaped push-bar L at a point near the forward edge of the front frame of the machine. The rear end of the T push-bar extends back to a line with the axle, where it has a universal coupling or ball-and-socket joints M either with the axle N or, preferably, with a rock-shaft N, journaled in suitable brackets on the back frame immediately 0 above the axle. As shown in the drawings, this rock-shaft is squared (see Figs. 7' and 9) and has a ball 0 rigidly mounted thereon and inclosed with a separable coupling-socket P, rigidly secured to the rear end of the pushbar. This push-bar, near its forward end,

passes freely through a horizontal elongated stay-loop Q, rigidly secured to the front frame or tongue of the machine, which loop while permitting free horizontal swinging of the push-bar prevents vertical movement thereof, the vertical movement of the marker-shaft being provided for by a pivot connection between the forward ends of the coupling-bars and the push-bar, which connection should be suificiently loose to permit of the independent vertical movements of the opposite ends of the marker-shaft when the machine is in operation.

In Fig. 8 I have shown in detail the mechanism for operating the lifting-arms for raising and lowering the marker, comprising prolongations R upon the lifting-arms S, to which is secured, through a link T, one end of a coil-spring U, the opposite end of which spring is secured to the back frame. The arms are rigidly secured upon the rock-shaft N, which shaft has mounted thereon a crankarm V, connected by a rod 1V wit-h a latchlever. X, pivoted to the back frame. As these devices are fully described, illustrated, and claimed in another application, Serial No. 13,713, filed by me of even date herewith, this brief description of their construction and mode of operation will suffice.

The means for operating the seed-dropping mechanism from the marker-shaft were also shown'and described in Letters Patent granted me on the 12th day of December, 1899, No. 638,721, and comprised the star-wheel a on the marker-shaft, the points of which are arranged to strike a bell-crank lever b, pivoted to the cross-bar J of the marker attachment, which lever is connected by a rod 0 with the lever d, pivoted to the tongue, said lever being in turn connected by a rod a with a crank-arm f upon the rock-shaft g, connected with and operating the seed-drop'pin g mechanism in the usual manner.

The flexible connection between the marker and planter herein provided is novel, simple, and economical, gives the greatest possible freedom in the operation of the marker, as Well as in the swerving and turning of the planter, without aifecting the marker, and while the marker attachment has a universally-flexible connection with the planter at the center thereof it is brought about by means widely dilfering from those disclosed in my patented machine, and while affording a very short-coupled machine secures sufficient length in the coupling by going forward with the coupling-bars and back with the push-bar to avoid the sensitiveness which would otherwise result from a short coupling.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In an automatic check-row corn-planter, the combination with the planter and the marker-shaft, of a push-bar having a universal coupling at one end with the planter at or about the center of length of the axle, coupling-bars having horizontal pivot connections at their ends respectively with the marker-shaft and the forward end of the pushbar and a guide for the push-bar permitting lateral movement only thereof, substantially as described.

2. In an automatic check-row corn-planter, the combination with the planter and the marker-shaft, of a T-shaped push-bar,a rockshaft journaled in the planter-frame above the axle, a universal coupling between the rear end of said bar and the shaft,.a pair of couplingdoars seoured at one end to a cross bar and in which cross-bar the marker-shaft is journaled, a horizontal pivot connection between the forward ends of said couplingbars and the forward end of the push-bar, the planter-tongue and a horizontal elongated stay-loop rigidly secured to said tongue in which the push-bar works, substantially as described.

3. In an automatic check-row corn-planter, the combination with the planter and the marker-shaft, of a T-shaped push-bar,a rockshaft journaled in the planter-frame above the axle, a universal coupling between the rear end of said bar and the shaft, a pair of coupling-bars secured at one end to a crossbar and in which cross-bar the marker-shaft is journaled, a horizontal pivot connection between the forward ends of said coupling bars and the forward end of the push-bar, the planter-tongue, a horizontal elongated stayloop rigidly secured to said tongue in which the push-bar works, lifting-arms rigid upon said rock-shaft, alatch-lever connected with, so as to rock, said shaft and springs coacting with said lever to rock the shaft in one direction to raise the arms, substantially as described.

JAMES B. JARMIN.

Witnesses:

HENRY THUENEN, J r., HARRIET OURNYN. 

